n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 4 |
4 | 10 |
5 | 24 |
6 | 62 |
7 | 155 |
8 | 396 |
9 | 992 |
10 | 2504 |
11 | 6228 |
12 | 15512 |
13 | 38220 |
14 | 94059 |
15 | 229498 |
16 | 558642 |
17 | 1350384 |
18 | 3255138 |
19 | 7801327 |
20 | 18642118 |
21 | 44329833 |
22 | 105111283 |
23 | 248184255 |
24 | 584396849 |
25 | 1371048495 |
26 | 3208318247 |
27 | 7483522231 |
28 | 17413665881 |
29 | 40405120865 |
30 | 93543352492 |
[1,1,2,4,10,24,62,155,396,992,2504,6228,15512, 38220,94059,229498,558642,1350384,3255138,7801327, 18642118,44329833,105111283,248184255,584396849, 1371048495,3208318247,7483522231,17413665881, 40405120865,93543352492] |